Allotrope
Alloys
Labs
Miscellaneous
Miscellaneous II
100
Carbon composed of thin flat sheets.
What is graphite.
100
A solid combination of atoms of two or more solid metals.
What is an alloy
100
In "Striking it Rich" , the kind of change made by the pennies was _____. DOUBLE JEOPARDY
What is physical
100
Engineered substances that have high melting points and are strong at high temperatures.
What are ceramics.
100
Plastics are made from this substance.
What is petroleum.
200
The hardest known substance.
What is diamond.
200
An alloy of zinc and copper. DOUBLE JEOPARDY!
What is brass
200
In the lab "striking it Rich" the penny heated directly on the hotplate turned to ______.
What is brass
200
A material that can conduct an electric current without electrical resistance.
What is a superconductor.
200
A solid substance with electrical conductivity between that of conductors and nonconductors.
What is semiconductor.
300
Substance made of very small spheres.
What is fullerene.
300
Which of the following is NOT an alloy? stainless steel, steel, bronze, copper
What is copper
300
In the lab "Copper Plating" , ______ was the anode.
What is copper strip.
300
Elements that make up most semiconductors. DOUBLE JEOPARDY!!
What are metalloids.
300
A layer that is physically attached to a product to protect, add color, or enhance its performance. DOUBLE JEOPARDY
What is coating.
400
Different forms of an element that have distinctly different chemical or physical properties.DOUBLE DEOPARDY
What is an Allotrope?
400
Which of the following is not an element? copper, zinc, pewter, oxygen
What is pewter (copper and antimony)
400
In the "Copper Plating," what was the reaction that occurred at the anode?
What is oxidation.
400
Very thin glass tubes that carry voice or electronic messages; they are used to replace copper wires.
What are optical fibers.
400
In electroplating, the power source provides these needed particles.
What are electrons.
500
Allotrope of carbon that forms very tiny long tubes.
What is carbon nanotubes
500
What are the two elements that make up the alloy bronze?
What is copper and tin.
500
The deposit of a thin layer of metal on the surface of an object by a process involving oxidation-reduction reactions is known as:
What is electroplating.
500
In electroplating, the electrode at which reduction occurs.
What is cathode.
500
A very thin layer of atoms or molecules deposited on a substance with the ability to harden cutting edges or give sunglasses UV protection.
What is film.
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